GENERAL DESCRIPTION

The MU9C1480A and MU9C1480L LANCAMs are 1024 x 64-bit content-addressable memories (CAMs), with a 16-bit wide interface. They are pin compatible with all devices in the MUSIC LANCAM family.

DISTINCTIVE CHARACTERISTICS

? 1024 x 64-bit CMOS content-addressable memory (CAM)

? 16-bit I/O

? Fast 90 ns compare speed

? Dual configuration register set for rapid context switching

? 16-bit CAM/RAM segments with MUSIC’s patented partitioning

? /MA and /MM output flags to enable faster system performance

? Readable Device ID

? Selectable faster operating mode with no wait states after a no-match

? Validity bit setting accessible from the Status register

? Single cycle reset for Segment Control register

? 44-Pin PLCC package / 44-Pin TQFP package

? 5 Volt (1480A) or 3.3 Volt (1480L) operation

APPLICATION BENEFITS

The 1024 x 64-bit LANCAM facilitates numerous operations:

? New package saves space

? New speed grade allows processing of both DA and SA within 560 ns, equivalent to 111, 10 Base-T or 11, 100 Base-T Ethernet ports

? Full CAM features allow all operations to be masked on a bit-by-bit basis

? Expanded powerful instruction set for any list processing needs

? Shiftable Comparand and mask registers assist in proximate matching algorithms

? Fully compatible with all MUSIC LANCAM series, cascadable to any practical length without performance penalties